Part
12470
Rev. 2 3/25/99
23
approval/disapproval authority.
If damage or malfunction is suspected or repairs deemed necessary, consult a Multi-Amp
Corporation Representative for assistance if it is unclear what course of action is needed. Please
provide model and serial number when making inquiries.
Pack the equipment appropriately to prevent damage during shipment. If a reusable crate or
container is used, the unit will be returned in it if the container is in suitable condition.
Put the SRO number on the address label of the shipping container for proper identification and
faster handling at the factory.
NOTE:
Ship the equipment without instruction manuals or nonessential items such as test
leads, spare fuses, etc. These items are not needed to conduct repairs.
PREPARATION FOR RESHIPMENT
Save the shipping container for future use. The shipping container your unit came in is designed to
withstand the normal bumps and shocks of shipping via common commercial carrier. For example,
you may wish to reship your unit to Multi-Amp for annual calibration certification.
OPERATIONAL ERRORS/TROUBLESHOOTING
Some operational errors will cause the operator to suspect a test set malfunction. Some examples of
these with common causes are as follows. Some basic component failures and malfunctions are also
identified.
1.
Difference in MEMORY/NORMAL ammeter readings:
Remember that the MEMORY mode is for taking instantaneous peak readings and not for
retaining continuous readings after the unit deinitiates. If used for continuous readings, an
error will result. The NORMAL mode is calibrated to read RMS current. Do not switch
from NORMAL to MEMORY to retain a reading or you will get a peak reading instead. The
MEMORY and NORMAL readings will be nearly equal under normal conditions if the
output current is maintained for several seconds after the meter is switched to the MEMORY
position. The test set may need to be calibrated if the difference is very great.
2.
No output current reading on the ammeter but the OUTPUT ON lamp is lighted:
